added clear admin command

src/commands/clear/index.js

@@ -0,0 +1,26 @@
+import { SlashCommandBuilder, EmbedBuilder, PermissionsBitField } from 'discord.js';
+
+export default {
+  data: new SlashCommandBuilder()
+    .setName('clear')
+    .setDescription('Deletes chosen amount of messages')
+    .addIntegerOption((option) => {
+      option.setName('amount')
+        .setDescription('amount of messages to delete')
+        .setMinValue(1)
+        .setMaxValue(25)
+        .setRequired(true);
+      return option;
+    })
+    .setDMPermission(false)
+    .setDefaultMemberPermissions(PermissionsBitField.Flags['Administrator']),
+  async execute(interaction, api) {
+    const amount = interaction.options.getInteger('amount');
+    await interaction.channel.bulkDelete(amount);
+
+    const embed = new EmbedBuilder()
+      .setTitle(`Deleted ${amount} messages in total`)
+      .setColor(interaction.member.displayColor);
+    await interaction.reply({ embeds: [ embed ] });
+  }
+};